1121200332100 has 18 divisors (see below), whose sum is σ = 2433004720874. Its totient is φ = 448480132800.

The previous prime is 1121200332059. The next prime is 1121200332163. The reversal of 1121200332100 is 12330021211.

It can be written as a sum of positive squares in 3 ways, for example, as 3968244036 + 1117232088064 = 62994^2 + 1056992^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5606001561 + ... + 5606001760.

Almost surely, 2^{1121200332100} is an apocalyptic number.

1121200332100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1121200332100 is an abundant number, since it is smaller than the sum of its proper divisors (1311804388774).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1121200332100 is a wasteful number, since it uses less digits than its factorization.

1121200332100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11212003335 (or 11212003328 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 1121200332100 its reverse (12330021211), we get a palindrome (1133530353311).

The spelling of 1121200332100 in words is "one trillion, one hundred twenty-one billion, two hundred million, three hundred thirty-two thousand, one hundred".